Yield-per-recruit and relative mean biomass estimates, and their management consequences, to the Penaeus indicus fishery in the Gulf of Masirah.
1996
Siddeek M.S.M. | Mohan R. | Johnson D.W.
The von Bertalanffy growth parameters estimated based on the 1990/91 carapace length data of Penaeus indicus from the Gulf of Masirah, Oman were used to calculate total mortality, yield-per-recruit (i.e., average weight of a shrimp from a cohort under a given fishing pattern) and relative mean biomass (i.e., exploited cohort biomass over un-exploited cohort biomass) for the population sampled. The instantaneous total mortality coefficient value indicated under exploitation in 1990/91. When different fishing seasons scenarios were considerd with the current total mortality level, but with a range of natural mortality values, high yield-perrecruit and relative mean biomass values were shown for October-April and November-April fishing seasons. The fishing seasons is currently late August to end of April. Thus, one to two-month dealy in the seasons appears to be beneficial to this fishery.
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